DE388773C - Process for improving the efficiency of frequency transformers, especially for high frequency technology purposes - Google Patents

Process for improving the efficiency of frequency transformers, especially for high frequency technology purposes

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Publication number
DE388773C
DE388773C DED38730D DED0038730D DE388773C DE 388773 C DE388773 C DE 388773C DE D38730 D DED38730 D DE D38730D DE D0038730 D DED0038730 D DE D0038730D DE 388773 C DE388773 C DE 388773C
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DE
Germany
Prior art keywords
frequency
efficiency
transformers
improving
high frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DED38730D
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German (de)
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Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Individual filed Critical Individual
Priority to DED38730D priority Critical patent/DE388773C/en
Application granted granted Critical
Publication of DE388773C publication Critical patent/DE388773C/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H03B19/03—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source using non-linear inductance

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Filters And Equalizers (AREA)

Description

Bei den Frequenzvervielfachungsverfahren von Joly-Vallauri werden bekanntlich zwei gegengeschaltete Transformatorenkeme verwendet, wobei die sekundäre Frequenz auf den primären Kreis infolge der Gegenschaltung und damit Gegenmagnetisierung gar nicht oder nur wenig zurückwirkt. Wird aber bei irgendeinem anderen Prinzip der Frequenzvervielfachung mittels Transformatoren, gleichgültig ob dabei Glekhstrommagnetisierung angewendet wird oder nicht, die Wickelrichtung primär und sekundär gleichsinnig, so ist auch an den Primärklemmen die Spannung sekundärer Frequenz entsprechend dem Übersetzungsverhältnis des Transformators vorbanden und drückt durch den Primärkreis einen dem Widerstände entsprechenden Strom. Nun ist es Tatsache, daß aus mehreren Gründen, wie Erreichung möglichst flacher- Resonanzkurve und niedriger Spannung, Vermeidung der Kosten von Selbstinduktionsspulen usw., in den einzelnen Resonanzkreisen möglichst große Kapazitäten angewendet werden ohne Selbstinduktionsspulen oder höchstensIt is well known that the Joly-Vallauri frequency multiplication methods two counter-connected transformer cores are used, with the secondary frequency on the primary circuit as a result of the counter circuit and thus counter magnetization even has little or no effect. But it will with any other principle of frequency multiplication by means of transformers, regardless of whether this involves Glekhstromagnetisation is used or not, the winding direction primary and secondary in the same direction, so the voltage of the secondary frequency is also at the primary terminals according to the transmission ratio of the transformer and pushes through the primary circuit a current corresponding to the resistance. Now it is a fact that for several reasons How to achieve the flatter resonance curve and low voltage possible, avoidance the cost of self-induction coils, etc., in the individual resonance circuits if possible large capacities can be applied without self-induction coils or at most

ein kleines ."Variometer, um die Kondensatoreneinheit zu überbrücken. Für die Spannung sekundärer Frequenz bedeutet das unter Umständen gegenüber dem Widerstand des Verbrauchskreises annähernd Kurzschluß oder zum mmdesten einen parallel geschalteten geringohmigen Kreis. Das ist eine der Ursachen des schlechten Wirkungsgrades der Frequenzvervielfachungen.a small. "variometer to the capacitor unit to bridge. For the voltage of the secondary frequency, this may mean the resistance of the Consumption circuit approximately short circuit or to the mmdesten one connected in parallel low resistance circle. That is one of the causes of the poor efficiency of the Frequency multipliers.

ίο Der neue Gedanke der Erfindung ist der, in den primären Kreis derart große, evtl. gleichzeitig zur Abstimmung benutzbare Drosselspulen einzuschalten, daß der Wechselstromwiderstand des primären Kreises für die Spannung höherer Frequenz einen im Verhältnis zum Verbrauchskreise mindestens doppelten oder größeren Widerstand bedeutet.ίο The new idea of the invention is that in the primary circle such large ones, possibly also usable for voting at the same time Reactors turn on that the AC resistance of the primary circuit for the voltage of higher frequency is at least one in relation to the consumption circuits means double or greater resistance.

Um die Drosselspulen nicht zu groß zuIn order not to make the choke coils too big

bekommen, ist es zweckmäßig, den Generatorit is convenient to get the generator

ao mit dem Transformator nur lose zu koppeln, und zwar entweder durch einen stark streuenden Transformator oder besser durch ein Kopplungsvariometer. Wenn die sekundäre Rückwirkung auf den primären Kreis geringao to couple with the transformer only loosely, either by a strongly scattering Transformer or better by a coupling variometer. If the secondary feedback on the primary circle is small

as ist, so kann unter. Umständen die lose Kopplung des Generators genügen, um ihn vor den höheren Frequenzen zu schützen.as is, so can under. Circumstances the loose coupling of the generator are sufficient to protect it from the higher frequencies.

Die Zeichnung zeigt ein Schaltungsschema für das Verfahren gemäß der Erfindung als Ausführungsbeispiel.The drawing shows a circuit diagram for the method according to the invention as Embodiment.

In der Zeichnung ist 1 ein Schwingungserzeuger, 2 und 4 sind Abstimmkondensatoren, 3 ist das Kopplungsvariometer, 5 ist eine Sekundärfrequenzen abschirmende Selbstinduktion, 6 ist ein Frequenztransformator, 'und 8 sind Abstimmelemente für die Sekundärfrequenzen und 9 die in beliebiger Weise gekoppelte Antenne.In the drawing, 1 is a vibrator, 2 and 4 are tuning capacitors, 3 is the coupling variometer, 5 is a self-induction shielding secondary frequencies, 6 is a frequency transformer, 'and 8 are tuning elements for the secondary frequencies and 9 for any Way coupled antenna.

Claims (2)

Patent-Ansprüche:Patent Claims: i. Verfahren zur Verbesserung des Wirkungsgrades von Frequenztransformatoren, insbesondere für Zwecke der Hochfrequenztechnik, dadurch gekennzeichnet, daß in den Primärkreis solcher Transformatoren, bei denen die Tendenz für die Entstehung von Wechselströmen höherer Frequenz im Primärkreis vosliegt, Drosselspulen eingebaut werden, die so bemessen sind, daß der Widerstand im Primärkreise für die höhere Frequenz mindestens doppelt so groß oder größer ist als der sekundäre Verbrauchswiderstand. i. Procedures to improve the efficiency of frequency transformers, in particular for purposes of high frequency technology, characterized in that such in the primary circuit Transformers that tend to generate alternating currents of higher frequency in the primary circuit, Reactors are installed, which are dimensioned so that the resistance in the primary circuit for the higher frequency is at least twice as large or greater than the secondary consumption resistance. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß zwecks weiterer Verminderung des Einflusses sekundären Stromes auf den Generator letzterer mit dem Schwingungskreise nur lose durch ein Kopplungsvariometer verbunden ist2. The method according to claim 1, characterized in that for the purpose of further Reduction of the influence of secondary current on the generator of the latter with the oscillation circuit only loosely through one Coupling variometer is connected
DED38730D 1920-12-14 1920-12-14 Process for improving the efficiency of frequency transformers, especially for high frequency technology purposes Expired DE388773C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED38730D DE388773C (en) 1920-12-14 1920-12-14 Process for improving the efficiency of frequency transformers, especially for high frequency technology purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED38730D DE388773C (en) 1920-12-14 1920-12-14 Process for improving the efficiency of frequency transformers, especially for high frequency technology purposes

Publications (1)

Publication Number Publication Date
DE388773C true DE388773C (en) 1924-01-25

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ID=7044290

Family Applications (1)

Application Number Title Priority Date Filing Date
DED38730D Expired DE388773C (en) 1920-12-14 1920-12-14 Process for improving the efficiency of frequency transformers, especially for high frequency technology purposes

Country Status (1)

Country Link
DE (1) DE388773C (en)

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